Riveting machine



Oct. 12, 1943.

. c. THIELE 2,331,359

RIVETING MACHINE Filed July 26, 1941 INVENTOR d2 Th-Lela Patented Oct. 12, 1943 UNITED. STATES PATENT nrvETING MACHINE Clyde Thiele, Hampton; Va. Application July 26, 1941, ScriaINo. 404,115

(Granted under the act of March 3,1883, as amended April 30, 1928; 3700. G 757) 4 Claims.

and which may quickly and easily be removed for replacement by another anvil of different size according to the nature and size of the work.

With these and other objects in view, as well as other advantages that may be incident to the use of the improvements, the invention consists in the parts and. combinations thereof hereinafter set forth and claimed, with the understanding that several necessary elements constituting the same may be varied in proportion and arrangement without departing from the nature and scope of the invention, as defined in the appended claims.

In order to make the invention more clearly understood, there are shown in the accompanying drawing, means for carrying the inventioninto practical use, without limiting the improvements in their useful application to the particular construction, which, for the purpose of .explanation have been made the subject of illustration.

The single figure of the accompanying drawing is a view partly in side elevation and partly in longitudinal section of a riveting machine constructed in accordance with the invention.

Referring to the drawing the improved riveting machine is shown as comprising a riveting gun ii! of any suitable commercial type and operated either electrically or pneumatically. A hammer II in the form of an elongated rod is resiliently secured to the forward end of the gun It by means of a tightly wound coiled spring i 2, en-

gageable with a head It formed on the hammer H. The forward end of the hammer I! is provided with a removable riveting tip M of suitable size and configuration for engagementwith a rivet l5 securing plates i6 together.

During the riveting operation the rivet, i5 is backed up by a yoke ll having a leg It overhanging the end of the hammer i I and forming an anvil engageable by the rivet and a leg I 9 terminating in a longitudinally extending portion 20 provided with a pair of spaced lugs 2i and 22 for slidable engagement with the hammer l I. The yoke I! is urged rearwardly and the anvil 18 toward the riveting tip it by a coiled spring 23 which encircles thehammer ll between the lugs 21 and 22. This spring abuts thelug 22 and a washer 24 which is removably heldin position on the hammer by a spring clip 25 engageable with a circumferential groove 26 formed-inlthe e u A sleeve 27 is also; slidabl-y mounted onthe hammer l l between the rear. end. oftheJportion 20 of the yoke l1 and the hammer attaching spring l2 and is yieldably maintained in abutting engagement with the former by a coiled spring 28 which is interposed between a collar 29 formed on the sleeve and a washer 31! mounted on the hammer H and abutting the spring IL. The sleeve 21 is formed with apair of upwardly extending spaced ears 3i between which a lever 32 is pivotally mounted. The lower end of this lever is formed with a cam 33 which is held by the spring 28 in engagement with a slot as provided in the rear end of the portion 220 of the yoke.

It will be noted from an inspection of the drawing, thatrwhen the lever 32 occupies the upright position illustrated in full lines, the spring 23 is free to slide the yoke i7 rearwardly on the hammer so as to clamp the rivet 15 between the tip i i of the hammer and the anvil during the upsetting operation. When, however, the riveting operation is completed the lever 32 is swung rearwardly and downwardly to the position shown by broken lines in the drawing in which position the cam 33 forces the yoke I? bodily to the position illustrated by the broken lines and against the action of the spring 23 so as to release the work.

When it is desired to substitute a yoke of another size so as to accommodate work of different size, it is only necessary to release the spring clip 25 which will permit the entire assembly to be slid off of the hammer.

It will be understood that the above description and accompanying drawing comprehend only the general and preferred embodiment of the invention and that various changes in construction, proportion and arrangement of the parts may be made within the scope of the appended claims without sacrificing any of the advantages of the invention.

The invention described herein may be manufactured and used by and for the Government of the United States of America for governmental purposes without the payment of any royalties thereon or therefor.

I claim:

l. A riveting machine comprising a riveting O F CE gun, an elongated hammer mounted thereon for transmitting impacts delivered thereto by said gun longitudinally thereof to a rivet, a removable anvil slidably mounted on said hammer, resilient means for urging said anvil toward said hammer to grip a rivet to be riveted therebetween and manually operable means mounted on said hammer for engagement with said anvil to move the same away from said hammer against the action of said resilient means to release the rivet.

2. A riveting machine comprising a riveting gun, an elongated hammer mounted thereon for transmitting impacts delivered thereto by said gun longitudinally thereof to a rivet, a yoke having one leg slidably mounted on said hammer and the other leg overhanging the end of said hammer and forming an anvil therefor, abutments on said hammer and said yoke, a spring encircling said hammer between said abutments for urging said anvil toward said hammer to grip a rivet to be riveted therebetween and manually operable means mounted on said hammer for engagement with said anvil to move the same away from said hammer against the action of said resilient means to release the rivet.

3. A riveting machine comprising a riveting gun, an elongated hammer mounted thereon for transmitting impacts delivered thereto by said gun longitudinally thereof to a rivet, a removable anvil slidably mounted on said hammer, resilient means for urging said anvil toward said hammer to grip a rivet to be riveted therebetween and manually operable cam mounted on said hammer for engagement with said anvil to move the same away from said hammer against the action of said resilient means to release the rivet.

4. A riveting machine comprising a riveting gun, an elongated hammer mounted thereon for transmitting impacts delivered thereto by said gun longitudinally .thereof to a rivet. a yoke having one leg slidably mounted on said hammer and the other leg overhanging the end of said hammer and forming an anvil therefor, abutments on said hammer and said yoke, a spring encircling said hammer between said abutments for urging said anvil toward said hammer to grip a rivet to be riveted therebetween, a manually operable cam mounted on said hammer for engagement with said anvil to move the same away from said hammer against the action of said resilient means to release the rivet, and a spring encircling said hammer for urging said cam into engagement with said yoke.

CLYDE THIELE. 

